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SigmasTek  |  SKU: BW-5455

OPTI-UPS ES650 / 650ES UPS Compatible Replacement Battery

Sale price $26.03 USD Regular price $37.74
Shipping calculated at checkout.

➤ High rate discharge for OPTI-UPS ES650 / 650ES units

➤ Valve regulated and spill-proof for safe operation

➤ Low self-discharge extends battery readiness

➤ U.L. and CE certified for quality and safety

➤ Brand new with 1-year warranty included


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 12 Ah

Terminal Type

F2

Replacement OPTI-UPS ES650 / 650ES UPS Battery — SigmasTek SP12-12HR (12 Volts 12 AH)

Restore peak performance to your OPTI-UPS ES650 / 650ES with this brand new SigmasTek SP12-12HR replacement UPS battery (12 Volts, 12 AH). Specifically built for high rate discharge UPS applications, this battery offers the reliability and quick-response power your OPTI-UPS ES650 / 650ES requires for short-duration, high-power events. If you need a high-performance UPS battery and a long-lasting battery solution for emergency readiness, this option delivers proven performance.

Key Specifications

  • Model: SigmasTek SP12-12HR
  • Voltage: 12 Volts
  • Capacity: 12 AH
  • High Rate Discharge Design
  • Valve Regulated Spill Proof Construction
  • Low Self-discharge
  • High Vibration Resistance
  • U.L. Recognized and CE Certified
  • Superior Performance
  • Brand New, Factory Fresh
  • 1 Year Warranty
  • Compatible Manufacturer/Model: OPTI-UPS ES650 / 650ES

Benefits

This replacement battery delivers robust durability and dependable life for demanding UPS applications. The valve-regulated, spill-proof design ensures safe indoor use and reduces maintenance, while the low self-discharge characteristic preserves capacity during storage. High vibration resistance and high rate discharge capability make this battery an excellent, long-lasting battery for systems that require quick bursts of power—precisely the behavior expected from a high-performance UPS battery.

Use this battery in uninterruptible power supply units, emergency power systems, and battery-powered tools where short-term, high-current output is necessary. Each battery is factory-tested to meet or exceed OEM specifications for the OPTI-UPS ES650 / 650ES, giving you confidence in compatibility and performance.

  • Durability: Valve-regulated and spill-proof for safe, maintenance-free use
  • Reliability: Low self-discharge keeps battery ready after storage
  • Performance: Designed for high rate discharge UPS applications
  • Applications: UPS units, emergency power supply, battery powered tools

Buy your replacement UPS battery for the OPTI-UPS ES650 / 650ES today and get a superior, high-performance UPS battery backed by a one-year warranty. Order now to secure reliable backup power and quick shipment.


Payment & Security

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